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on-line |
в режиме работы в системе: 27 phrases in 12 subjects |
Computers | 1 |
Electronics | 4 |
Gyroscopes | 1 |
Hi-Fi | 1 |
Information security and data protection | 1 |
Mass media | 10 |
Mathematics | 1 |
Military | 2 |
Rail transport | 1 |
Security systems | 2 |
Technology | 2 |
Telecommunications | 1 |